/// <summary>
/// 判断对象是否具有指定名称的成员。
/// </summary>
/// <param name="instance">被搜索的对象。</param>
/// <param name="name">要搜索的成员名称。</param>
/// <param name="binding">指定搜索对象中那些类型的成员。</param>
/// <param name="ignoreCase">指定是否忽略成员名称的大小写。</param>
/// <returns>如果对象中指定类型的成员中存在指定名称的成员，返回 true；否则返回 false。</returns>
public static object Contains(this INamedAccessable instance, string name, MemberTypeBinding binding = MemberTypeBinding.All, bool ignoreCase = false)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
var proxy = TypeProxy.GetProxy(instance.GetType());
return(proxy.Contains(name, binding, ignoreCase));
}
/// <summary>
/// 判断当前类型中，是否存在指定名称的成员。
/// </summary>
/// <param name="name">要搜索的成员名称。</param>
/// <param name="binding">指定搜索那些类型的成员。</param>
/// <param name="ignoreCase">指定是否忽略大小写。</param>
/// <returns>如果在指定的成员类型中搜索到该成员名称，返回 true；否则返回 false。</returns>
public bool Contains(string name, MemberTypeBinding binding = MemberTypeBinding.All, bool ignoreCase = false)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException("name");
}
var comparison = ignoreCase ? StringComparison.CurrentCultureIgnoreCase : StringComparison.CurrentCulture;
return((binding & MemberTypeBinding.Property) == MemberTypeBinding.Property && props.Any(pi => pi.Name.Equals(name, comparison)) ||
(binding & MemberTypeBinding.Field) == MemberTypeBinding.Field && fields.Any(fi => fi.Name.Equals(name, comparison)) ||
(binding & MemberTypeBinding.Method) == MemberTypeBinding.Method && methods.Any(mi => mi.Name.Equals(name, comparison)) ||
(binding & MemberTypeBinding.Event) == MemberTypeBinding.Event && events.Any(ei => ei.Name.Equals(name, comparison)));
}
/// <summary>
/// 获取指定类型的成员名称。
/// </summary>
/// <param name="typeBinding">成员类型。</param>
/// <param name="includeStatic">指定返回的名称中，是否包含静态成员。</param>
/// <param name="ignoreCase">是否忽略成员名称大小写。</param>
/// <returns>返回指定类型的所有成员的名称。</returns>
public IEnumerable <string> GetMemberNames(MemberTypeBinding typeBinding = MemberTypeBinding.All, bool includeStatic = true, bool ignoreCase = false)
{
var result = Enumerable.Empty <string>();
var comparer = ignoreCase ? StringComparer.CurrentCultureIgnoreCase : StringComparer.CurrentCulture;
if ((typeBinding & MemberTypeBinding.Property) == MemberTypeBinding.Property)
{
result = result.Concat(props.Where(pi => includeStatic || !pi.IsStatic()).Select(pi => pi.Name));
}
if ((typeBinding & MemberTypeBinding.Field) == MemberTypeBinding.Field)
{
result = result.Concat(fields.Where(fi => includeStatic || !fi.IsStatic).Select(fi => fi.Name));
}
if ((typeBinding & MemberTypeBinding.Method) == MemberTypeBinding.Method)
{
result = result.Concat(methods.Where(mi => includeStatic || !mi.IsStatic).Select(mi => mi.Name));
}
if ((typeBinding & MemberTypeBinding.Event) == MemberTypeBinding.Event)
{
result = result.Concat(events.Select(ei => ei.Name));
}
return(Enumerable.Distinct(result, comparer).ToArray());
}